Etsy: While Etsy's popularity has declined recently, it's still a great resource for selling handmade items online. No need for complex ecommerce sites or merchant accounts or any sort of automation. The company takes a commission of every sale and charges a small listing fee per item. But many still use Etsy as their primary source of income. The best part is that you can also sell digital products such as poster designs.

Take advantage of the growing delivery trend and sign up for a service like Instacart, UberEats, Postmates or Amazon Flex. You get paid per delivery, in most cases, and can even earn tips. A car isn’t always required — Postmates lets you use a bike, scooter or your own two feet to make deliveries — but a background check almost always is part of the deal. Learn more about how to get started with Amazon Flex, UberEats and Instacart.